ADOPTED LEVELS for 178Tl
Authors: E. Achterberg, O.A. Capurro, G.V. Marti | Citation: Nucl. Data Sheets 110, 1473 (2009) | Cutoff date: 31-May-2008
Full ENSDF file | Adopted Levels (PDF version)
| Q(β-)=-8.36×103 keV SY | S(n)= 9.54×103 keV SY | S(p)= -7.0×102 keV SY | Q(α)= 7.02×103 keV 5 | ||
| Reference: 2012WA38 |
| E(level) (keV) | T1/2(level) |
| 0.0 | 254 ms +11-9 % ε ≈ 47 % α ≈ 53 |
Additional Level Data and Comments:
| E(level) | Jπ(level) | T1/2(level) | Comments |
| 0.0 | 254 ms +11-9 % ε ≈ 47 % α ≈ 53 | The 178Tl g.s. decays by four α branches to states in 174Au, and by ε decay to 178Hg. The α transition energies are: 6.859 5, 6.785 5, 6.704 5 and 6.616 15 MeV, with relative I(α) of 10, 18, 59 and 13%, respectively (2002Ro17). Other: 1997Ca16 report Eα=6.87, 6.79, 6.71 MeV, for the first three branches. E(level): The 178Tl g.s. decays by four α branches to states in 174Au, and by ε decay to 178Hg. The α transition energies are: 6.859 5, 6.785 5, 6.704 5 and 6.616 15 MeV, with relative I(α) of 10, 18, 59 and 13%, respectively (2002Ro17). Other: 1997Ca16 report Eα=6.87, 6.79, 6.71 MeV, for the first three branches. |
2002Ro17: 178Tl activity produced by the 102Pd(78Kr,pn) reaction, at 355 MeV (beam, 340 MeV at mid-target). 2-ms period pulsed beam. Berkeley gas-filled separator for reaction products, followed by parallel-plate avalanche counter. Position-sensitive Si strip detector for evaporation residue implantation, and α decay measurements.
Q-value: Note: Current evaluation has used the following Q record -8320 syst 9500 syst -740 syst 7020 50 2003Au03
Q-value: ΔQ(β)=120, ΔS(n)=120, ΔS(p)=140 2003Au03
Q-value: Q(β+)=11560 110 keV (estimated by 2003Au03 from systematics)